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1. 发明授权

US5445014A Electronic engine load and revolution sensing device 失效
标题翻译：电子发动机负载和转速检测装置
公开(公告)号：US5445014A
公开(公告)日：1995-08-29
申请号：US289907
申请日：1994-08-12
申请人： John A. Fiorenza, II , Richard A. Dykstra , Joseph L. Pfaff , Scott L. Wesenberg , Douglas Shears
发明人： John A. Fiorenza, II , Richard A. Dykstra , Joseph L. Pfaff , Scott L. Wesenberg , Douglas Shears
IPC分类号： F02P5/15 , F02B63/02 , F02B75/02 , F02D45/00 , G01M15/04 , G01L3/26
CPC分类号： F02B63/02 , G01M15/046 , F02B2075/027 , F02D2200/1015
摘要： The device automatically determines whether a load is being applied to the engine, and outputs a change signal that is used to change one or more engine operating parameters accordingly, such as engine speed, engine timing, or fuel flow. The load is sensed without using a manifold pressure or throttle plate position sensor, thereby reducing the cost of the system. The load is sensed by determining a period of a first crankshaft revolution, determining a period of the successive second crankshaft revolution, and computing a difference value that is a function of the difference between the first and second periods. Since the difference value is proportional to engine load, the difference values may be compared with a reference value to determine whether a load is being applied to the engine. The reference value may be preset, may be manually determined by the operator, or may be learned by the system's software. When the learning feature is used, the system is automatically mapped to the particular engine on which it is used.
摘要翻译：设备自动地确定负载是否被施加到发动机，并且输出用于相应地改变一个或多个发动机操作参数的变化信号，例如发动机转速，发动机正时或燃料流量。在不使用歧管压力或节流板位置传感器的情况下感测负载，从而降低系统的成本。通过确定第一曲轴旋转的周期，确定连续的第二曲轴旋转的周期以及计算作为第一和第二周期之间的差的函数的差值来感测负载。由于差值与发动机负荷成正比，可以将差值与参考值进行比较，以确定负载是否被施加到发动机。可以预设参考值，可以由操作者手动确定，也可以由系统的软件学习。当使用学习功能时，系统会自动映射到使用它的特定引擎。

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